CN110349220A - It is a kind of for measuring the high-precision calibration gridiron pattern of train wheel - Google Patents
It is a kind of for measuring the high-precision calibration gridiron pattern of train wheel Download PDFInfo
- Publication number
- CN110349220A CN110349220A CN201910630776.4A CN201910630776A CN110349220A CN 110349220 A CN110349220 A CN 110349220A CN 201910630776 A CN201910630776 A CN 201910630776A CN 110349220 A CN110349220 A CN 110349220A
- Authority
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- China
- Prior art keywords
- fixed frame
- external fixed
- chessboard
- rotating bar
- panel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/08—Measuring arrangements characterised by the use of optical techniques for measuring diameters
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/80—Analysis of captured images to determine intrinsic or extrinsic camera parameters, i.e. camera calibration
Abstract
The present invention provides a kind of for measuring the high-precision calibration gridiron pattern of train wheel, including chessboard panel, there is top rotating bar at the top of the chessboard panel in horizontally disposed, the chessboard panel is rotatablely connected by the turning set at the top of it with top rotating bar, in being vertically arranged, there are two vertical connecting rods for the two sides of the top rotating bar, the bottom of two vertical connecting rods is provided with support base, the vertical connecting rod is provided with link block close to the side of top rotating bar, the top of the support base is attached by screw rod and vertical connecting rod, the surrounding side wall of the chessboard panel is provided with external fixed frame, the external fixed frame is in be surrounded with graduated scale close to the bottom of chessboard panel, in being symmetrically vertically arranged, there are two position mirror for the bottom of the external fixed frame.The adjustable chessboard obliquity of apparatus of the present invention is more convenient positioned, improve chessboard brightness.
Description
Technical field
The invention belongs to calibration technique fields more particularly to a kind of for measuring the high-precision calibration chessboard of train wheel
Lattice.
Background technique
The movement of train is rotated by dynamic power machine band motor car wheel, and since wheel is located on rail, so vehicle
There is mutual friction with rail in wheel, so that train advances, in the operation of train, the importance of wheel is self-evident, China
It is railway track traffic country with the fastest developing speed, the detection of present wheel has been realized in mechanization, adopts in the industry at present
Measurement scheme is all image analysis mostly, train after testing equipment when, once photo taking is carried out to each wheel, further according to
The wheel diameter data of the photo analysis and calculating train taken pictures.
But when taking pictures to train wheel, being passed by due to wheel can cause to shake, so that camera arrangement is sent out
Raw vibration, and then precision is influenced, so usually will do it re-calibration in use for some time, to the space coordinate of imaging
System is re-scaled, and existing calibration mode is all to need video camera shooting calibration chessboard to exist using the method for calibration chessboard
Vertically with inclined picture in space, but calibration chessboard currently on the market, most of is all that structure very simple is commonly moulded
Flitch composition, and without fixed device, this common plastics plate can not be fixed well when placing at rail,
And even if being capable of fixing, adjust the angle and when position it is also very troublesome, and when weather conditions are poor or night,
The image that scaling board can not clearly be shot needs additional light source to irradiating on scaling board, and it is bright cannot excessively
It concentrates, the excessively high quality that will affect imaging of brightness, this scaling board for itself not having light source, user goes to irradiate with external light source
It is cumbersome, and angle can not be rotated well, it is mutually perpendicular to video camera.
Summary of the invention
In order to solve the above technical problem, the present invention provides a kind of for measuring the high-precision calibration chessboard of train wheel
Lattice.
The present invention is a kind of for measuring the tessellated purpose of high-precision calibration and effect of train wheel, by detail below
Technological means is reached:
It is a kind of for measuring the high-precision calibration gridiron pattern of train wheel, including chessboard panel, the top of the chessboard panel
There is top rotating bar in horizontally disposed, the chessboard panel is rotatablely connected by the turning set at the top of it with top rotating bar, institute
The two sides of top rotating bar are stated in being vertically arranged there are two vertical connecting rod, the bottom of two vertical connecting rods is provided with
Support base, the vertical connecting rod are provided with link block close to the side of top rotating bar, and the top of the support base is logical
It crosses screw rod to be attached with vertical connecting rod, the surrounding side wall of the chessboard panel is provided with external fixed frame, and the outside is solid
Determine frame close to the bottom of chessboard panel in being surrounded with graduated scale, the external fixed frame by the anchor bolt of its side wall with
Chessboard panel is fixedly connected, and the bottom of the external fixed frame is vertically arranged in symmetrical there are two positioning mirror, the turning set
In multiple swivel beckets are vertically arranged with, multiple swivel beckets are fixedly connected with top rotating bar for inside.
Further, the surface of the swivel becket is in multiple sliding pieces are surrounded with, and the sliding piece is close to swivel becket
One end be respectively provided with there are two snap ring, the swivel becket and the mutual corresponding position of snap ring are provided with card slot, the card slot
It is internally provided with rotation axis, the surface of the rotation axis is surrounded with torsionspring, and the snap ring passes through rotation axis and top
Rotating bar rotation connection, the swivel becket and rotation plectrum are steel member, and the top rotating bar is interior with vertical connecting rod
Portion is hollow.
Further, the both ends of the turning set are provided with annular groove, and the annular groove is internally provided with rotation axis
It holds, the turning set is rotatablely connected by rolling bearing and top rotating bar, and the inner wall of the turning set is in around setting
Have multiple inclined teeths, the inclined teeth is in the skewed setting in side, and the card slot is mutually clamped with inclined teeth, the inclined teeth and
The position of swivel becket corresponds to each other, and mutually staggers between the inclined teeth.
Further, threaded hole, bottom and the threaded hole phase of the turning set are provided at the top of the external fixed frame
Mutual corresponding position is provided with round hole, will be fixedly connected at the top of turning set and external fixed frame by rotating bolt, described
External fixed frame is fluted close to the setting of one end of chessboard panel side wall, and the chessboard panel is also set close to the position of anchor bolt
It is equipped with horizontal thread groove, chessboard panel is fixed on inside grooves, the groove by anchor bolt by the external fixed frame
Be internally provided with rubber sheet gasket, the chessboard panel is made of plastics, the bottom surface of the chessboard panel be provided with it is international as
The pattern of chess plate.
Further, the external fixed frame is provided with semicircular groove close to the two sidewalls bottom end of positioning mirror, described
Inside grooves are provided with solar panel, and the solar panel has fluorescent tube in horizontally disposed close to the side of chessboard panel, and the fluorescent tube is logical
The connecting rod and solar panel for crossing both ends are attached, and the fluorescent tube is LED energy-saving pipe.
Further, the positioning mirror is made of glass, and the top of the positioning mirror passes through screw and external fixed frame
Bottom is connected with each other, and is positioned mirror and be mutually perpendicular to external fixed frame, and the inside of the positioning mirror is in be vertically arranged with concentric circles
Lines, and position mirror and be provided centrally with cross one another position line, the one side of the present apparatus is respectively arranged with laser emitter
With shooting camera, and the angle of laser emitter is adjustable.
Compared with prior art, the invention has the following beneficial effects:
1, it by the intercombination of sliding piece and inclined teeth, realizes the function of ratchet structure, turning set is unidirectionally carried out
Rotation, and gridiron pattern is driven by turning set to guarantee to stablize due to the mutual clamping of sliding piece and inclined teeth after rotation
Plate adjusts obliquity, enables the photographing camera to obtain the photo of a proper angular position.
2, the angle that chessboard is determined by two mutual corresponding positioning mirrors, passes through the Laser emission that a position is fixed
Laser is passed through the center of a side positioning mirror with camera angle vertical angle, the positioning mirror of the other side is reached, by checking by device
Laser is in the position of two side positioning mirrors, to determine whether chessboard panel is parallel to each other with the injection angle of laser, if laser is worn
The center for crossing two positioning mirrors, then illustrate that chessboard panel is located at the position vertical with camera, can be shot.
3, power supply is connected by the fluorescent tube inside external fixed frame, so that lamp luminescence, and pass through the poly- of fluorescent tube side
The light that fluorescent tube issues is pooled in gridiron pattern plate surface by tabula rasa, will illuminate chessboard panel, can when shooting more
It is clear, guarantee the quality of camera imaging.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is structure of the invention top view；
Fig. 3 is structure of the invention chessboard panel schematic diagram；
Fig. 4 is fixed frame schematic diagram of internal structure outside structure of the invention；
Fig. 5 is structure of the invention turning set schematic diagram of internal structure；
Fig. 6 is structure of the invention turning set cross-sectional view；
Fig. 7 is structure of the invention swivel becket schematic diagram of internal structure.
In figure: 1, chessboard panel；2, top rotating bar；3, turning set；4, vertical connecting rod；5, support base；6, it connects
Block；7, screw rod；8, external fixed frame；9, graduated scale；10, anchor bolt；11, mirror is positioned；12, swivel becket；13, sliding piece；14,
Card slot；15, torsionspring；16, rotation axis；17, annular groove；18, inclined teeth；19, solar panel；20, fluorescent tube.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, what those of ordinary skill in the art obtained without making creative work has other implementations
Example, shall fall within the protection scope of the present invention.
As shown in figs. 1-7: a kind of for measuring the high-precision calibration gridiron pattern of train wheel, including chessboard panel 1, chess
There is top rotating bar 2 at the top of disk panel 1 in horizontally disposed, and chessboard panel 1 passes through the turning set 3 and top rotating bar at the top of it
2 rotation connections, in being vertically arranged, there are two vertical connecting rod 4, the bottoms of two vertical connecting rods 4 for the two sides of top rotating bar 2
It is provided with support base 5, vertical connecting rod 4 is provided with link block 6, the top of support base 5 close to the side of top rotating bar 2
Portion is attached by screw rod 7 with vertical connecting rod 4, and the surrounding side wall of chessboard panel 1 is provided with external fixed frame 8, and outside is solid
Determine frame 8 and passes through the anchor bolt 10 of its side wall in graduated scale 9, external fixed frame 8 is surrounded with close to the bottom of chessboard panel 1
Be fixedly connected with chessboard panel 1, the bottom of external fixed frame 8 in being symmetrically vertically arranged there are two positioning mirror 11, turning set 3 it is interior
In multiple swivel beckets 12 are vertically arranged with, multiple swivel beckets 12 are fixedly connected with top rotating bar 2 in portion.
In multiple sliding pieces 13 are surrounded with, sliding piece 13 is all provided with close to one end of swivel becket 12 on the surface of swivel becket 12
It sets there are two snap ring, swivel becket 12 and the mutual corresponding position of snap ring are provided with card slot 14, and being internally provided with for card slot 14 turns
Moving axis 16, the surface of rotation axis 16 are surrounded with torsionspring 15, and snap ring is connected by rotation axis 16 and the rotation of top rotating bar 2
It connecing, multiple sliding pieces 13 are all looped around the surface of swivel becket 12, and due to mutually staggering so that the rotation of gear is more smooth,
And minimum adjustment degree also becomes smaller, more accurate.
The both ends of turning set 3 are provided with annular groove 17, and annular groove 17 is internally provided with rolling bearing, and turning set 3 is logical
It crosses rolling bearing to be rotatablely connected with top rotating bar 2, the inner wall of turning set 3 inclines in multiple inclined teeths 18 are surrounded with
Helical teeth 18 is in the skewed setting in side, and sliding piece 13 and inclined teeth 18 are mutually clamped, so that inclined teeth 18 can only one-directionally rotate, is prevented
Only invert.
The top of external fixed frame 8 is provided with threaded hole, and the bottom of turning set 3 and the mutual corresponding position of threaded hole are arranged
There is round hole, be fixedly connected with turning set 3 with the top of external fixed frame 8 by rotating bolt, external fixed frame 8 is close to chessboard
One end setting of 1 side wall of panel is fluted, and chessboard panel 1 is also equipped with horizontal thread groove close to the position of anchor bolt 10,
Chessboard panel 1 is fixed on inside grooves by anchor bolt 10 by external fixed frame 8, and inside grooves are provided with rubber sheet gasket, is protected
Fixation can be preferably attached with chessboard panel 1 by demonstrate,proving external fixed frame 8.
External fixed frame 8 is provided with semicircular groove close to the two sidewalls bottom end of positioning mirror 11, and inside grooves are provided with
Solar panel 19, solar panel 19 have fluorescent tube 20, the connecting rod that fluorescent tube 20 passes through both ends in horizontally disposed close to the side of chessboard panel 1
It being attached with solar panel 19, fluorescent tube 20 is LED energy-saving pipe, start fluorescent tube 20 by switching, so that fluorescent tube 20 issues radiance,
And since the side of fluorescent tube 20 is provided with solar panel 19, when light reaches solar panel 19, since solar panel 19 is inner-concave
Sunken, so light is assembled in reflection, so that light is reflected into chessboard panel 1, guarantee the light of chessboard panel 1
Degree improves image quality.
Positioning mirror 11 is made of glass, and the top of positioning mirror 11 is connected with each other by the bottom of screw and external fixed frame 8,
And positioning mirror 11 is mutually perpendicular to external fixed frame 8, the inside of positioning mirror 11 is in be vertically arranged with concentric circles lines, and position mirror
11 are provided centrally with cross one another position line, the laser emitter of setting are adjusted angle, so that laser is each passed through
Two positioning mirrors 11, by observing laser again later positioned at the position of two positioning mirrors 11, to check tilt angle.
Working principle: when in use, support base 5 is fixed on to the position for needing work, is realized by rotary screw 7
Vertical connecting rod 4 rises or falls, then rising or falling by vertical connecting rod 4, to drive top 2 both ends of rotating bar
It rises or falls, to be adjusted to suitable position, and the laser emitter of setting is adjusted into angle, so that laser
Two positioning mirrors 11 are each passed through, by observing laser again later positioned at the position of two positioning mirrors 11, turning set 3 is rotated, leads to
It crosses 3 drive inclined teeth 18 of rotary motion set to be rotated, and since sliding piece 13 and inclined teeth 18 are mutually clamped, so when inclining
When helical teeth 18 rotates, when the angle of rotation is identical as the tilt angle of sliding piece 13, inclined teeth 18 squeezes sliding piece 13, due to
Sliding piece 13 is provided with torsionspring 15 close to the side of top rotating bar 2, and the rotation of sliding piece 13 squeezes torsionspring 15, makes
Reversed rotation energy is put aside in the inside for obtaining torsionspring 15, in the rotation of turning set 3 due to turning set 3 and 1 phase of chessboard panel
It connects, so driving chessboard panel 1 to be rotated by turning set 3, to adjust tilt angle, so that laser is across two layers
The center of mirror 11 is positioned, at this moment the tilt angle of chessboard panel 1 and the launch angle of laser are identical, after the completion of adjustment,
Under the action of torsionspring 15, inclined teeth 18 is bonded by reaction force with sliding piece 13 again, and due to sliding piece 13
It is obliquely installed, so inclined teeth 18 can be stopped to rotate backward, to guarantee the stabilization of chessboard panel gridiron pattern plate 1, adjustment
After good angle, picture is shot by camera, is being adjusted to other positions later, processing adjustment data is carried out, to determine sky
Between body surface point three-dimensional geometry position and its correlation between corresponding points in the picture, it is poor when there is light
When weather or environment, fluorescent tube 20 is even connected with the mains, starts fluorescent tube 20 by switching, so that fluorescent tube 20 issues radiance, and
Since the side of fluorescent tube 20 is provided with solar panel 19, when light reaches solar panel 19, since solar panel 19 is inner recess,
So light is assembled in reflection, so that light is reflected into 1 surface of chessboard panel, guarantees the brightness of chessboard panel 1, mention
High imaging quality.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of for measuring the high-precision calibration gridiron pattern of train wheel, including chessboard panel (1), it is characterised in that: institute
There is top rotating bar (2) at the top for stating chessboard panel (1) in horizontally disposed, and the chessboard panel (1) passes through the rotation at the top of it
It covers (3) and top rotating bar (2) to be rotatablely connected, in being vertically arranged, there are two vertical connections for the two sides of the top rotating bar (2)
The bottom of bar (4), two vertical connecting rods (4) is provided with support base (5), and the vertical connecting rod (4) is close to top
The side of portion's rotating bar (2) is provided with link block (6), and the top of the support base (5) passes through screw rod (7) and vertical connecting rod
(4) it is attached, the surrounding side wall of the chessboard panel (1) is provided with external fixed frame (8), and the external fixed frame (8) is leaned on
In being surrounded with graduated scale (9), the external fixed frame (8) passes through the anchoring spiral shell of its side wall for the bottom of nearly chessboard panel (1)
Bolt (10) is fixedly connected with chessboard panel (1), and in being symmetrically vertically arranged, there are two position mirror for the bottom of the external fixed frame (8)
(11), the inside of the turning set (3) is in being vertically arranged with multiple swivel beckets (12), multiple swivel beckets (12) with top
Rotating bar (2) is fixedly connected.
2. a kind of for measuring the high-precision calibration gridiron pattern of train wheel as described in claim 1, it is characterised in that: described
The surface of swivel becket (12) is in be surrounded with multiple sliding pieces (13), the one end of the sliding piece (13) close to swivel becket (12)
It is respectively provided with there are two snap ring, the swivel becket (12) and the mutual corresponding position of snap ring are provided with card slot (14), the card slot
(14) be internally provided with rotation axis (16), the surface of the rotation axis (16) is surrounded with torsionspring (15), the card
Ring is rotatablely connected by rotation axis (16) and top rotating bar (2).
3. a kind of for measuring the high-precision calibration gridiron pattern of train wheel as described in claim 1, it is characterised in that: described
The both ends of turning set (3) are provided with annular groove (17), and the annular groove (17) is internally provided with rolling bearing, the rotation
Set (3) is rotatablely connected by rolling bearing with top rotating bar (2), and the inner wall of the turning set (3) is in be surrounded with
Multiple inclined teeths (18), the inclined teeth (18) are in the skewed setting in side, and the card slot (14) and inclined teeth (18) are mutually blocked
It connects.
4. a kind of for measuring the high-precision calibration gridiron pattern of train wheel as described in claim 1, it is characterised in that: described
Threaded hole is provided at the top of external fixed frame (8), the bottom of the turning set (3) and the mutual corresponding position of threaded hole are arranged
There is round hole, will be fixedly connected at the top of turning set (3) and external fixed frame (8) by rotating bolt, the external fixed frame
(8) close to one end of chessboard panel (1) side wall, setting is fluted, position of the chessboard panel (1) close to anchor bolt (10)
It is also equipped with horizontal thread groove, chessboard panel (1) is fixed on groove by anchor bolt (10) by the external fixed frame (8)
Inside, the inside grooves are provided with rubber sheet gasket.
5. a kind of for measuring the high-precision calibration gridiron pattern of train wheel as described in claim 1, it is characterised in that: described
External fixed frame (8) is provided with semicircular groove close to the two sidewalls bottom end of positioning mirror (11), and the inside grooves are provided with
Solar panel (19), the solar panel (19) have fluorescent tube (20), the fluorescent tube in horizontally disposed close to the side of chessboard panel (1)
(20) it is attached by the connecting rod at both ends with solar panel (19), the fluorescent tube (20) is LED energy-saving pipe.
6. a kind of for measuring the high-precision calibration gridiron pattern of train wheel as described in claim 1, it is characterised in that: described
Positioning mirror (11) is made of glass, and the top of positioning mirror (11) is mutually interconnected by screw and the bottom of external fixed frame (8)
It connects, and positions mirror (11) and be mutually perpendicular to external fixed frame (8), the inside of positioning mirror (11) is in be vertically arranged with concentric circles
Lines, and position mirror (11) and be provided centrally with cross one another position line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910630776.4A CN110349220B (en) | 2019-07-12 | 2019-07-12 | High-precision calibration checkerboard for measuring train wheels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910630776.4A CN110349220B (en) | 2019-07-12 | 2019-07-12 | High-precision calibration checkerboard for measuring train wheels |
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| Publication Number | Publication Date |
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| CN110349220A true CN110349220A (en) | 2019-10-18 |
| CN110349220B CN110349220B (en) | 2021-09-07 |
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ID=68175194
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| CN201910630776.4A Active CN110349220B (en) | 2019-07-12 | 2019-07-12 | High-precision calibration checkerboard for measuring train wheels |
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| CN110349220B (en) | 2021-09-07 |
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